Influence of Tube Current Settings on Diagnostic Detection of Root Fractures Using Cone-beam Computed Tomography: An In Vitro Study

Tangari-Meira, Ricardo; Vancetto, José Ricardo; Dovigo, Lívia Nordi; Tosoni, Guilherme Monteiro

doi:10.1016/j.joen.2017.05.008

Cited by 9 publications

(11 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…While some studies have found no significant effect on the identification of secondary caries beneath amalgam fillings in primary teeth, 21 others have noted diagnostic improvements in the detection of root fractures, especially when artifact-producing materials are present. 12 13 …”

Section: Discussionmentioning

confidence: 99%

“…These include the tube current (milliamperage, or mA) and the implementation of metal artifact reduction (MAR), both of which have been shown to impact specific diagnostic tasks. 4 12 13 Relevant factors also include the proximity of the zone of interest to the source of the artifact, which has been demonstrated to relate inversely to the severity of its detrimental effects. 14 In light of these considerations, this study was conducted to assess the impact of artifacts produced by metal crowns on the detection of proximal caries lesions in teeth both near and distant to the artifact-generating object on CBCT images, and to determine the potential effects of the milliamperage and MAR settings on this process.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Potential impact of metal crowns at varying distances from a carious lesion on its detection on cone-beam computed tomography scans with several protocols

Barros-Costa,

Nascimento,

Correia-Dantas

et al. 2024

Imaging Sci Dent

View full text Add to dashboard Cite

Purpose This study evaluated the impact of artifacts generated by metal crowns on the detection of proximal caries lesions in teeth at various distances using cone-beam computed tomography (CBCT). Additionally, the diagnostic impacts of tube current and metal artifact reduction (MAR) were investigated. Materials and Methods Thirty teeth were arranged within 10 phantoms, each containing 1 first premolar, 1 second premolar, and 1 second molar. A sound first molar (for the control group) or a tooth with a metal crown was placed. Of the 60 proximal surfaces evaluated, 15 were sound and 45 exhibited enamel caries. CBCT scans were acquired using an OP300 Maxio unit (Instrumentarium, Tuusula, Finland), while varying the tube current (4, 8, or 12.5 mA) and enabling or disabling MAR. Five observers assessed mesial and distal surfaces using a 5-point scale. Multi-way analysis of variance was employed for data comparison, with P <0.05 indicating statistical significance. Results The area under the curve (AUC) varied from 0.40 to 0.60 (sensitivity: 0.28-0.45, specificity: 0.44-0.80). The diagnostic accuracy was not significantly affected by the presence of a metal crown, milliamperage, or MAR ( P >0.05). However, the overall AUC and specificity were significantly lower for surfaces near a crown ( P <0.05). Conclusion CBCT-based caries detection was not influenced by the presence of a metal crown, variations in milliamperage, or MAR activation. However, the diagnostic accuracy was low and was further diminished for surfaces near a crown. Consequently, CBCT is not recommended for the detection of incipient caries lesions.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Potential impact of metal crowns at varying distances from a carious lesion on its detection on cone-beam computed tomography scans with several protocols

Barros-Costa,

Nascimento,

Correia-Dantas

et al. 2024

Imaging Sci Dent

View full text Add to dashboard Cite

show abstract

“…17,18 Only a few studies seem to have paid attention to reproducing the attenuation characteristics of the human head, employing complete jaws, and sometimes cervical vertebrae, all immersed in a water bath for soft tissue simulation. [18][19][20] Why should the research model design matter? X-ray attenuation is dependent on the quantity and types of material through which the X-ray beam passes.…”

mentioning

confidence: 99%

Does anthropomorphic model design in ex vivo studies affect diagnostic accuracy for dental root fracture using CBCT?

Yalda

Clarkson

Davies

et al. 2020

Dentomaxillofacial Radiology

View full text Add to dashboard Cite

Objectives: The evidence for diagnostic accuracy using cone beam computed tomography (CBCT) for dental applications depends heavily on ex vivo research, but there is little knowledge of whether the model used affects the diagnostic accuracy results. The objective of this study was to determine the impact of different designs of anthropomorphic models on diagnostic accuracy for the specific task of dental root fracture detection. Methods: Horizontal or oblique root fracture was induced in 24 of 48 permanent maxillary incisors. The 48 teeth were scanned by CBCT using standard clinical exposure factors on five occasions, each with a different model design. Scans were viewed by five dental and maxillofacial radiologists, who each made a forced diagnosis of fracture or no fracture in each root and a judgment on root fracture using a five-point confidence scale. Sensitivity (Se), specificity (Sp) and areas under receiver operating characteristic (ROC) curve (Az) were calculated for each observer for each model. Results: There were no significant differences between the diagnostic accuracy measurements recorded using different models. There were, however, numerous significant differences between observers using the same anthropomorphic model. Conclusions: Despite the differences in X-ray attenuation between the five model designs, the results suggest that the anthropomorphic model does not affect the results of diagnostic accuracy studies on root fracture using this CBCT machine at standard clinical exposures. This provides some confidence in the previously published evidence. The interobserver diagnosis differences indicate that research using only two observers could provide misleading results.

show abstract

“…The current study included a relatively large number of examiners (n = 20) with a similar educational background, level of training and experience time, which permit obtain more precise kappa values with possible reproducibility for other clinicians [22]. However, it was expected that increasing the number of examiners, the chance to obtain high reproducibility among them could decreased [32].…”

Section: Discussionmentioning

confidence: 99%

Concordância entre radiologistas odontológicos e cirurgiões buco maxilofaciais e entre diferentes métodos de imagem na decisão de diagnóstico para canal mandibular bífido e forame mentual acessório

Souza¹

View full text Add to dashboard Cite

DEDICATÓRIADedico este trabalho, primeiramente, a Deus por me permitir chegar até o final desta jornada, aos meus pais, Dione de Assis Souza e Francinete Moreira de Souza, por todo suporte e confiança que em mim depositaram, à minha irmã, Franciany Moreira de Souza, pela amizade e força e ao meu sobrinho, Yedro Moreira e Oliveira por ser o meu amor e minha alegria constante. AGRADECIMENTOSA Deus pelo sustento e por toda a força que me deu para lutar por este sonho, por ter me alimentado espiritualmente todos os dias e por jamais ter desistido de mim. Por esta vitória e outras que estão por vir, o meu obrigado.Aos meus pais pelo incentivo, pelo amor incondicional, por todo investimento, por compreenderem a minha ausência em todos esses anos.Agradeço а minha mãе, Francinete Moreira de Souza, por ser um exemplo para mim, por ser essa guerreira e fazer de tudo para agradar toda a família, pelo seu cuidado, por toda sua preocupação e dedicação e por estar comigo no cansaço e na vitória. Ao meu pai, Dione de Assis Souza, por ser um pai e um marido presente, por ter trabalhado todos esses anos a fim de nos dar conforto e boa educação, por todo o investimento e confiança que me depositou. A presença de vocês significou segurança e a certeza de que nunca estarei sozinha. Obrigada por lutar por nossa família todos os dias. À minha irmã, Franciany Moreira de Souza, por se preocupar tanto comigo, por torcer por mim em todos os momentos e comemorar comigo todas as conquistas. Por ter me dado o melhor presente, o meu sobrinho Yedro Moreira e Oliveira. Vocês me dão forças para continuar a lutar todos os dias, trazem alegria e colorem o meu viver. Obrigada por me darem ânimo e, apesar da distância e ausência, jamais se esquecerem de mim. À minha avó, Francisca, e minha madrinha, Irene, por todas as orações, todo o incentivo, pelo suporte e por toda compreensão. A Universidade Estadual de Campinas, por permitir e incentivar o meu aprendizado, especialmente a Faculdade de Odontologia de Piracicaba, pela equipe competente de coordenadores, docentes e funcionários, por dar condições de estudos teórico e prático na instituição e por acolherem tão bem todos os estudantes. Ao Departamento de Diagnóstico Oral, especificamente, à Área de Radiologia Odontológica por todo o suporte científico, financeiro e de infra-estrutura. À minha orientadora, Prof. Dra. Luciana Asprino, a quem tenho muita admiração e respeito. Obrigada por ter acreditado na minha capacidade como aluna e pesquisadora, por toda confiança que me depositou, por ter me proporcionado a oportunidade de viver novas experiências na pesquisa e na vida, por me fazer crescer pessoal e profissionalmente e, acima de tudo, por ser uma amiga e professora tão dedicada. Obrigada pelo conhecimento transmitido, por toda dedicação, conselhos e por despertar em mim a curiosidade e me conduzir firme no objetivo deste trabalho. Sou grata por sua ajuda, compreensão, paciência e amizade despertada durante esta jornada. Ao Prof. Dr. Francisco Haiter Neto, por ter sido prestativo em me ajudar com...

show abstract

Influence of Tube Current Settings on Diagnostic Detection of Root Fractures Using Cone-beam Computed Tomography: An In Vitro Study

Abstract: Tube current has a significant influence on the diagnostic detection of RFs in CBCT images. Despite the acceptable diagnosis of RFs using 4.0 and 5.0 mA, those settings had lower discrimination abilities when compared with settings of 8.0 and 10.0 mA.

Cited by 9 publications

References 30 publications

Potential impact of metal crowns at varying distances from a carious lesion on its detection on cone-beam computed tomography scans with several protocols

Potential impact of metal crowns at varying distances from a carious lesion on its detection on cone-beam computed tomography scans with several protocols

Does anthropomorphic model design in ex vivo studies affect diagnostic accuracy for dental root fracture using CBCT?

Concordância entre radiologistas odontológicos e cirurgiões buco maxilofaciais e entre diferentes métodos de imagem na decisão de diagnóstico para canal mandibular bífido e forame mentual acessório

Contact Info

Product

Resources

About